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Flow meter

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  1. Standard orifice flowmeter
  2. Standard orifice flowmeter
  3. Standard orifice flowmeter
  4. Standard orifice flowmeter

Standard orifice flowmeter

YFLJB series standard orifice flowmeters are designed and manufactured strictly in accordance with standard documents GB / T2624 and ISO5167, and have been maturely applied to flow measurement of liqu

  1. Working principle
  2. Technical Parameters
  3. Selection table
  4. Dimension drawing
  5. Instructions for ordering

YFLJB series standard orifice flowmeters are designed and manufactured strictly in accordance with standard documents GB / T2624 and ISO5167, and have been maturely applied to flow measurement of liquid, gas, steam, and partially mixed flow (gas-solid, gas-liquid, liquid-solid, etc.). The sealing surface of the pressure taking flange adopts the FM surface seal, which makes the throttle piece and the pressure taking flange seal better. At the same time, the installation of the throttle piece has better self-centering, which effectively improves the measurement accuracy and safety of the flow meter. performance.

Measurement mediumLiquid, gas, steam, mixed phase flowRange ratio1:10, 1:15
Measuring aperture15 mm ≤ DN ≤ 1200mmMeasuring accuracyclass 0.5, class 1.0
Nominal pressurePN ≤ 42MPaMaterialcan be selected according to the measurement medium
Temperature range-50℃≤ t ≤ 550℃


ModelDescription
YFLJYaFeng throttling device
Throttling deviceBstandard orifice plateQround orifice plate
PBalance orifice / adjustment orificeGWedge
VV coneZnozzle
XX orifice plate (not used and metered, only for current limiting or pressure reduction)WVenturi
Caliber-XX Pipe diameter is expressed by Arabic numerals, for example, DN100mm can be expressed as -100
Pressure-1.61.0  1.6  2.0  2.5  4.0  6.3  6.3 or more
Pressing methodFFlange press (flange wafer type)
Jcorner joint pressure (flange wafer type)
DD-ring pressure extraction (flange wafer type)
HH line spacing pressure (pipe integrated)
Flange typeWNwith neck butt welding flange
SWplate socket welding flange
Flange MaterialCCarbon Steel
P304
PL316L
Tother materials
Throttle materialP304
P1321
PL316L
Tother materials
Attachment0noY

pressure transmitter (pressure compensation)


LCondenserJFlowmeter Totalizer

FPressure taking valveCDifferential pressure transmitter

SThree valve groupTOther

WPT100(temperature compensation)


标准孔板流量计.jpg

Measurement medium:
Scale flow:
Maximum flow:
Common traffic:
Minimum flow:
Worksheet pressure:
Operating temperature:
Measuring medium density:
Measuring medium viscosity:
Isentropic index in working state:
Mean atmospheric pressure:
Relative humidity:
Pipe specifications (outer diameter X wall thickness) mm:
Media composition Volume percentage:
Selection of throttling devices:
Throttle material:
Pipe material and old and new:
Piping installation location:
Pressure loss:
Required attachment name: